U.S. patent number 10,435,215 [Application Number 15/921,205] was granted by the patent office on 2019-10-08 for metal decorative product.
This patent grant is currently assigned to TOPPAN PRINTING CO., LTD.. The grantee listed for this patent is TOPPAN PRINTING CO., LTD.. Invention is credited to Rena Kudo, Takamitsu Nakabayashi, Keinosuke Yamaoka.
United States Patent |
10,435,215 |
Yamaoka , et al. |
October 8, 2019 |
Metal decorative product
Abstract
A metal decorative product has a metallic luster decoration
coated packaging on at least one side of a substrate and encloses a
part disposed with electromagnetic wave device. The metallic luster
decoration coated packaging is formed by coating an ink mixed with
metal powder. In the metallic luster decoration coated packaging,
the ink is used to make the metal powder and metal powder
connection formed by the metal powder insulated and independent
from each other.
Inventors: |
Yamaoka; Keinosuke (Tokyo,
JP), Nakabayashi; Takamitsu (Tokyo, JP),
Kudo; Rena (Tokyo, JP) |
Applicant: |
Name |
City |
State |
Country |
Type |
TOPPAN PRINTING CO., LTD. |
Tokyo |
N/A |
JP |
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Assignee: |
TOPPAN PRINTING CO., LTD.
(Tokyo, JP)
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Family
ID: |
58417270 |
Appl.
No.: |
15/921,205 |
Filed: |
March 14, 2018 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20180201422 A1 |
Jul 19, 2018 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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PCT/CN2016/100758 |
Sep 29, 2016 |
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Foreign Application Priority Data
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Sep 30, 2015 [CN] |
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2015 1 0639290 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B32B
1/02 (20130101); B65D 85/00 (20130101); B65D
5/62 (20130101); B32B 15/08 (20130101); B65D
65/40 (20130101); B65D 5/425 (20130101); B65D
65/42 (20130101); B65D 33/004 (20130101); B65D
2203/08 (20130101); B65D 2203/10 (20130101) |
Current International
Class: |
B65D
65/42 (20060101); B32B 15/08 (20060101); B65D
85/00 (20060101); B65D 5/42 (20060101); B65D
5/62 (20060101); B65D 33/00 (20060101); B65D
65/40 (20060101); B32B 1/02 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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101052975 |
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Oct 2007 |
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CN |
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101430772 |
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May 2009 |
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CN |
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101434752 |
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May 2009 |
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CN |
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2015-160664 |
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Sep 2015 |
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JP |
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Other References
International Searching Authority, "International Search Report,"
issued in connection with PCT/CN2016/100758, dated Jan. 11, 2017.
cited by applicant .
International Searching Authority, "Written Opinion," issued in
connection with International Patent Application No.
PCT/CN2016/100758, dated Jan. 11, 2017. cited by applicant .
Extended European Search Report issued in the corresponding EP
Patent Application Ser. No. 16850371.2, dated Jul. 9, 2019. cited
by applicant.
|
Primary Examiner: Shewareged; Betelhem
Attorney, Agent or Firm: Foley & Lardner LLP
Parent Case Text
CROSS-REFERENCE TO RELATED PATENT APPLICATIONS
This application is a continuation application filed under 35
U.S.C. .sctn. 111(a) claiming benefit under 35 U.S.C. .sctn..sctn.
120 and 365(c) of International Application No. PCT/CN2016/100758,
filed on Sep. 29, 2016, which is based upon and claims the benefit
of priority of CN 201510639290.9, filed on Sep. 30, 2015, the
entireties of which are hereby incorporated by reference.
Claims
What is claimed is:
1. A metal decorative product, comprising: a metallic luster
decoration coated packaging on at least one side of a substrate and
enclosing a part with an electromagnetic wave device, wherein: the
metallic luster decoration coated packaging is formed by coating an
ink mixed with metal powder, and, the ink used to make the metal
powder and metal powder connection formed by the metal powder are
insulated and independent from each other.
2. The metal decorative product of claim 1, wherein, an electrical
length constituted by the metal powder and the metal powder
connection is less than or equal to 5 mm.
3. The metal decorative product of claim 1, wherein, the metallic
luster decoration coated packaging is formed through stereoscopic
printing.
4. The metal decorative product of claim 1, wherein, the metallic
luster decoration coated packaging is formed through dot
printing.
5. The metal decorative product of claim 1, wherein the substrate
comprises a resin film.
6. The metal decorative product of claim 5, wherein, the resin film
is an extended polyethylene terephthalate resin film, an extended
polypropylene resin film, an acrylic acid resin film, a cellulosic
resin film, a vinyl chloride resin film, or other transparent film,
the metallic luster decoration coated packaging is formed on at
least one side of the resin film by film coating.
7. The metal decorative product of claim 5, wherein, the resin film
is an extended polyethylene terephthalate resin film, an extended
polypropylene resin film, an acrylic acid resin film, a cellulosic
resin film, a vinyl chloride resin film, or other transparent film,
the substrate is a composite substrate formed by laminating the
resin film with other substrates, the metallic luster decoration
coated packaging is formed by film coating on an outer surface of a
resin film side of the composite substrate.
8. The metal decorative product of claim 5, wherein, the resin film
is an extended polyethylene terephthalate resin film, an extended
polypropylene resin film, an acrylic acid resin film, a cellulosic
resin film, a vinyl chloride resin film, or other transparent film,
the substrate is a composite substrate formed by laminating the
resin film with a paper substrate, the metallic luster decoration
coated packaging is formed by film coating on an inner surface of a
resin film side of the composite substrate.
9. The metal decorative product of claim 1, wherein, the substrate
is a coated paper, the metallic luster decoration coated packaging
is formed on a coating surface of the coated paper by film
coating.
10. The metal decorative product of claim 1, wherein, the metal
powder is aluminum pigment with a particle diameter less than or
equal to 20 .mu.m and a single piece thickness less than or equal
to 50 nm.
11. The metal decorative product of claim 1, wherein, the surface
resistivity of the metallic luster decoration coated packaging is
greater than or equal to 10 .OMEGA./sq.
12. The metal decorative product of claim 1, wherein the metallic
decorative product is a box shaped product.
13. The metal decorative product of claim 1, wherein the metallic
decorative product is a bag shaped product.
14. The metal decorative product of claim 1, wherein the metallic
decorative product is a laminated product.
15. A metal decorative product, comprising: a metallic luster
decoration coated packaging on at least one side of a substrate,
and, an electromagnetic wave device is attached to a surface of the
metallic luster decoration coated packaging, wherein: the metallic
luster decoration coated packaging is formed by coating an ink
mixed with metal powder, the ink used to make the metal powder and
metal powder connection formed by the metal powder are insulated
and independent from each other.
16. The metal decorative product of claim 15, wherein, an
electrical length constituted by the metal powder and the metal
powder connection is less than or equal to 5 mm.
17. The metal decorative product of claim 15, wherein, the metallic
luster decoration coated packaging is formed through stereoscopic
printing.
18. The metal decorative product of claim 15, wherein, the metallic
luster decoration coated packaging is formed through dot
printing.
19. The metal decorative product of claim 15, wherein the substrate
comprises a resin film.
20. The metal decorative product of claim 19, wherein, the resin
film is an extended polyethylene terephthalate resin film, an
extended polypropylene resin film, an acrylic acid resin film, a
cellulosic resin film, a vinyl chloride resin film, or other
transparent film, the metallic luster decoration coated packaging
is formed on at least one side of the resin film by film
coating.
21. The metal decorative product of claim 19, wherein, the resin
film is an extended polyethylene terephthalate resin film, an
extended polypropylene resin film, an acrylic acid resin film, a
cellulosic resin film, a vinyl chloride resin film, or other
transparent film, the substrate is a composite substrate formed by
laminating the resin film with other substrates, the metallic
luster decoration coated packaging is formed by film coating on an
outer surface of a resin film side of the composite substrate.
22. The metal decorative product of claim 19, wherein, the resin
film is an extended polyethylene terephthalate resin film, an
extended polypropylene resin film, an acrylic acid resin film, a
cellulosic resin film, a vinyl chloride resin film, or other
transparent film, the substrate is a composite substrate formed by
laminating the resin film with a paper substrate, the metallic
luster decoration coated packaging is formed by film coating on an
inner surface of a resin film side of the composite substrate.
23. The metal decorative product of claim 19, wherein, the
substrate is a coated paper, the metallic luster decoration coated
packaging is formed on a coating surface of the coated paper by
film coating.
24. The metal decorative product of claim 15, wherein, the metal
powder is aluminum pigment with a particle diameter less than or
equal to 20 .mu.m and a single piece thickness less than or equal
to 50 nm.
25. The metal decorative product of claim 15, wherein, the surface
resistivity of the metallic luster decoration coated packaging is
greater than or equal to 10 .OMEGA./sq.
26. The metal decorative product of claim 15, wherein the metallic
decorative product is a box shaped product.
27. The metal decorative product of claim 15, wherein the metallic
decorative product is a bag shaped product.
28. The metal decorative product of claim 15, wherein the metallic
decorative product is a laminated product.
Description
FIELD
The invention relates to a metal decorative product, and more
specifically to a metal decorative product having a metallic luster
to be used, for example, for packaging of high-class goods such as
wine and cosmetics.
BACKGROUND
For boxes of high-class goods such as wine, cosmetics and the like,
and high-class clothing, the design of metallic luster is sometimes
used to show the high-class feel of the commodities in those boxes.
As a technology for forming metallic luster, paper laminated with
metal foil such as aluminum foil, and paper laminated with metal
evaporated film such as aluminum evaporated film have been used in
the past.
On the other hand, in order to carry out brand protection, tracking
and tracing, and theft prevention for such high-class commodities,
RFID tags, anti-theft tags and other devices that use
electromagnetic waves are needed.
However, since materials using the above-described metal foil or
metal evaporated film have the characteristics of reflecting or
attenuating electromagnetic waves, these materials may have an
adverse effect on the utilization of electromagnetic wave devices.
For example, FIG. 5 is a schematic diagram showing the status where
the parts pasted with electromagnetic wave device are contained in
the existing metal decorative products, FIG. 6 is an enlargement
view of Area Y in FIG. 5, and FIG. 7 is a partial sectional view of
the existing metal decorative product. FIGS. 5-7 are used to
explain the effect on the communication of electromagnetic wave
devices. Metal foil is massively formed on the surface of substrate
101 of a wine packaging (which is a metal decorative product 100)
as a metallic luster decoration coated packaging 301, and a
printing layer is formed on the metallic luster decoration coated
packaging 301. Further, a wine bottle is contained in the metal
decorative product 100 as a part 200, on which an RFID tag is
attached as an electromagnetic wave device 201. As shown by the
arrow in FIG. 5, the electromagnetic wave generated by the
electromagnetic wave device 201 is reflected by the metallic luster
decoration coated packaging 301, so that it cannot be radiated
outside the metal decorative product 100. Therefore, it cannot be
read with a reader (not illustrated).
In the past, in order to improve the adverse effects caused by the
above-described metal foil or metal evaporation, various
technologies to avoid forming a conductor surface continuously
consisting of metal films were proposed.
For example, the same problem exists in millimeter wave radar
equipped on the marking part of cars. As a way to solve this
problem, there is a method to form striped evaporation by
controlling the evaporation of tin and other metals so as to solve
the problem.
Further, in RFID, removal of metal parts (i.e., demetallizing
process), by means of etching, etc., is also adopted in products
integrated with holograms. Thus, similar strategies are
utilized.
By utilizing the above strategies, the continuity of the conductor
surface can be destroyed so as to avoid the reflection or
attenuation of electromagnetic waves and the like.
SUMMARY OF THE INVENTION
Technical Problem to be Solved by the Present Disclosure
However, the existing special evaporation technology or
demetallizing process cannot be easily applied in manufacturing and
cause cost increase due to the limitation of evaporated metal
materials or the need for special manufacturing equipment.
The present invention is implemented in view of the above-mentioned
problems, and its purpose is to provide a metal decorative product
that can achieve metallic luster without adversely affecting the
performance of electromagnetic wave devices and can be easily
manufactured at a more lower cost.
Technical Measures for Solving the Technical Problem
To solve the above-described technical problem, a first aspect of
the present disclosure relates to a metal decorative product having
a metallic luster decoration coated packaging on at least one
surface of the substrate, and enclosing a part equipped with an
electromagnetic wave device. The metal decorative product is
characterized in that the metallic luster decoration coated
packaging is formed by printing ink mixed with metal powder. In the
metallic luster decoration coated packaging, the metal powder and
the metal powder connection formed by the metal powder are
separately insulated and independent with each other by using the
ink.
Further, a second aspect of the present disclosure relates to a
metal decorative product having a metallic luster decoration coated
packaging on at least one surface of the substrate. Electromagnetic
wave devices are attached to the surface of the metallic luster
decoration packaging. The metal decorative product is characterized
in that the metallic luster decoration coated packaging is formed
by printing ink mixed with metal powder. In the metallic luster
decoration coated packaging, the metal powder and the metal powder
connection formed by the metal powder are separately insulated and
independent with each other by using the ink.
Further, a third aspect of the present disclosure is characterized
in that, in the first or second aspect of the present disclosure,
the electrical length made up of the metal powder and the metal
powder connection in the metallic luster decorative coated
packaging is less than or equal to 5 mm.
Further, a fourth aspect of the present disclosure is characterized
in that, in the first or second aspect of the present disclosure,
the substrate is a resin film.
Further, a fifth aspect of the present disclosure is characterized
in that, in the first or second aspect of the present disclosure,
the substrate is a coated paper, on which the metallic luster
decoration coated packaging is formed on a coating surface of the
coated paper through coating.
Further, a sixth aspect of the present disclosure is characterized
in that, in the first or second aspect of the present disclosure,
the metal decorative product is a box shaped product.
Further, a seventh aspect of the present disclosure is
characterized in that, in the first or second aspect of the present
disclosure, the metal decorative product is a bag shaped
product.
Further, an eighth aspect of the present disclosure is
characterized in that, in the first or second aspect of the present
disclosure, the metal decorative product is a laminated
product.
Effects of the Disclosure
The metal decorative product of the present disclosure has the
following effects: that is, it can achieve metallic luster without
adversely affecting the performance of electromagnetic wave devices
and can be easily manufactured at a more lower cost.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic diagram for illustrating the structure of a
metal decorative product involved in the first embodiment of the
present disclosure.
FIG. 2 is an enlarged view of Area X shown in FIG. 1.
FIG. 3 is a partial sectional view of the metal decorative product
involved in the first embodiment of the present disclosure.
FIG. 4 is a schematic diagram for illustrating the structure of a
metal decorative product involved in the second embodiment of the
present disclosure.
FIG. 5 is a schematic diagram showing the status where a part
attached with an electromagnetic wave device is contained in an
existing metal decorative product.
FIG. 6 is an enlarged view of Area Y shown in FIG. 5.
FIG. 7 is a partial sectional view of the existing metal decorative
product.
DETAILED DESCRIPTION OF REPRESENTATIVE EMBODIMENTS
The present invention will be described by description of the
following representative embodiments. It will be understood that
the following embodiments are intended to be representative of the
present invention and that the present invention is not necessarily
limited to these representative embodiments.
In the following descriptions, the first embodiment of the present
disclosure will be illustrated with reference to FIGS. 1-3.
First Embodiment
FIG. 1 is a schematic diagram for illustrating the structure of a
metal decorative product involved in the first embodiment of the
present disclosure. FIG. 2 is an enlarged view of Area X shown in
FIG. 1. FIG. 3 is a partial sectional view of the metal decorative
product involved in the first embodiment of the present disclosure.
As shown in FIG. 1, a metal decorative product 10 is for example a
box for wine or other high-class commodities, and contains therein
a part 20 such as a wine bottle that is attached with an
electromagnetic wave device 21 such as an RFID tag. Further, as
shown in FIG. 3, the metal decorative product 10 is composed of a
substrate 11 such as paper. The surface of the substrate 11 has a
metallic luster decoration coated packaging 31 formed thereon, a
printing layer is formed on the metallic luster decoration coated
packaging 31.
FIG. 2 shows the status of the ink that forms the metallic luster
decoration coated packaging 31 of the metal decorative product. As
shown in FIG. 2, a large amount of metal powder 1 is dispersed in
the ink 2 which forms the metallic luster decoration coated
packaging 31, and the metal powder 1 is arranged in a tightly dense
state. However, since there exists a large amount of insulating ink
2 in a state that covers the surface of the metal powder 1, the
insulation between metal powders 1 can be basically ensured.
Also, as shown in FIG. 2, there is situation where a portion of the
metal powders tightly contact with each other to form a metal
powder connection 3. In the past, such connection is actively used
to further connect the metal powders 1 and the metal powder
connections 3 so as to form conductive ink, and the conductive ink
is printed to form a conductive loop. In contrast, the present
disclosure tries to avoid this connection state and uses the ink 2
to make the metal powders 1 and the metal powder connections 3
separately insulated and independent with each other.
With the above-described structure a metallic luster can be
achieved, and electromagnetic waves generated by the
electromagnetic wave device 21 are allowed to pass through the
metallic luster decoration coated packaging 31 and radiate outside
the metal decorative product 10 as shown by the arrow in FIG. 1 so
as to be read by using a reader (not shown).
Further, in order to more efficiently allow electromagnetic waves
generated by the electromagnetic wave device 21 to pass through,
from the point of view regarding electrical performance, the
metallic luster decoration coated packaging 31 formed by ink mixed
with metal powder 1 and metal powder connection 3 made of metal
powder 1 needs to separately and independently formed in a status
where the electrical length is very short. As a condition for the
above-described electrical length, for example in the case where
the electromagnetic wave device 21 is a radio wave device, it is
required that the electrical length of the metal powder 1 and the
metal powder connection 3 formed by the metal powder 1 shall be
shorter enough than that of the radio wave device. Further, in the
case where the electromagnetic wave device 21 is a magnetic device,
it is required that the physical length of the metal powder 1 and
the metal powder connection 3 formed therefrom shall be very short.
Therefore, in any case, the electrical length of the metal powder 1
and the metal powder connection 3 formed by the metal powder 1 is
preferably less than or equal to 5 mm.
Below, a comparison between the metal decorative product
illustrated in embodiments of the present disclosure and an
existing product as a comparison example is described.
First of all, smoothness of the substrate surface shall be ensured
to have metallic luster. Therefore, one side of a paperboard is
coated to form a coating so as to form a coated paper. The
paperboard, which is the substrate, is about 80 g/m.sup.2.about.300
g/m.sup.2. A coating surface of the above-described coated paper,
which has a coating on one side, is coated with silver ink by means
of relief printing so as to form a film shape and make a silver
paper with metal effect. The silver ink contains scaly metal powder
made of aluminum. The diameter of the particles in the aluminum
powder in the above ink is about 2 .mu.m.about.50 .mu.m, preferably
less than or equal to 20 .mu.m. Further, the thickness of one piece
of the above metal powder is preferably less than or equal to 50
nm. The silver paper is used as a substrate, on which design
printing for decoration is implemented in a manner of offset
printing. Next, various decorations are implemented through foil
pressing or screen printing. Then, a paper lamination machine is
used to laminate the paper. Demoulding and other processing are
then implemented so as to make the metal decorative product in the
embodiments of the present disclosure. Also, in the process of the
above-described coating of silver ink, one time brushing and two
times brushing (overlapping brushing) are attempted.
Next, as a comparison example, a silver paper making use of the
existing laminations is utilized to make aluminum foil product
which serves as the metal decorative product.
Then, the metal decorative product in the embodiments of the
present disclosure is compared with the aluminum foil product in
the above comparative example. In a state that the metal decorative
product is containing RFID tags in UFH band, the communication
performance of the RFID is acknowledged. As a result, the RFID in
the existing aluminum foil product as comparative example cannot
perform communication. On the other hand, the communication
performance of the RFID in the metal decorative product as recited
in the embodiments of the present disclosure does not deteriorate,
and can perform communication. Also, the results remain the same,
either with one time brushing or two times brushing.
Further, the metal decorative product in the embodiments of the
present disclosure is compared with the aluminum foil product in
the above comparative example with respect to the metallic luster
of appearance. The result is that both of them have the same
metallic luster.
Next, a second embodiment of the present disclosure is illustrated
with reference to FIG. 4.
Second Embodiment
FIG. 4 is a schematic diagram for illustrating the structure of the
metal decorative product involved in a second embodiment. Similarly
as described in FIG. 3, the metal decorative product 10 consists of
a substrate 11 such as paper. A metallic luster decoration coated
packaging 31 is formed on the surface of the substrate 11. A
printing layer is formed on the metallic luster decoration coated
packaging 31. Electromagnetic wave device 21' such as RFID tag and
the like are adhered to the surface of the metallic luster
decoration coated packaging 31, with the printing layer
intervening.
In addition, the status of the ink forming the metallic luster
decoration coated packaging 31 is the same as that described in the
first embodiment, thus is omitted herein.
For example, in the situation that an electromagnetic wave device
such as RFID tag etc. is attached to the surface of metal foil of a
box, which is an existing metal decorative product, the
electromagnetic wave generated by the RFID tag will cause eddy
currents in the metal foil so that the electromagnetic wave device
cannot perform communication.
On the other hand, in the metallic luster decoration coated
packaging 31 of the metal decorative product 10 involved in the
second embodiment, the metallic luster decoration coated packaging
31 is formed by coating an ink which is mixed with metal powder 1
and metal powder connection 3 formed by the metal powder 1. With
ink 2, the metal powder 1 and the metal powder connection formed by
the metal powder 1 are insulated and independent from each other so
as to inhibit the generation of eddy currents in the metallic
luster decoration coated packaging 31. Thus, as shown by the arrow
in FIG. 4, even if the electromagnetic wave device 21' such as RFID
tags are attached to the surface of the metallic luster decoration
coated packaging 31, the electromagnetic wave generated by the
electromagnetic wave device 21' can still be radiated out so that
the electromagnetic wave device 21' can perform communication.
Although the first and second embodiments of the present disclosure
are described above, various omissions, replacements and
modifications can be made without departing from the scope of the
idea of the present disclosure.
Further, in the first and second embodiments, while a wine bottle
packaging, which is a box shaped product, is exemplified as an
example of the metal decorative product of the present disclosure,
the present disclosure is not limited to this but can also be
applied to bag shaped products and laminated products. For example,
as an example of the laminated product, there is "IC card" or "IC
ticket", wherein a component such as RFID insert is laminated at
both front side and back side using a sheet shaped substrate having
a metallic luster decoration coated packaging.
Besides, in the first and second embodiments, printing methods such
as stereoscopic printing, dot printing, etc. can be enumerated as a
method of forming the metallic luster decoration coated packaging
31 on the surface of the substrate 11.
Besides, apart from "coated paper", "resin film" (such as PET, PVC,
PE, PP, etc.) and "wood" can also be used as the substrate of the
metal decorative product.
As an example of the structure that the metallic luster decoration
coated packaging is formed on a substrate, for example, the
metallic luster decoration coated packaging is formed in a manner
of film coating on at least one side of a resin film which an
extended polyethylene terephthalate (PET) resin film, an extended
polypropylene (PP) resin film, an acrylic acid resin film, a
cellulosic resin film, a vinyl chloride resin film, or other
transparent film.
Further, the resin film which is an extended polyethylene
terephthalate (PET) resin film, an extended polypropylene (PP)
resin film, an acrylic acid resin film, a cellulosic resin film, a
vinyl chloride resin film, or other transparent film can also be
laminated with other substrates to form a composite substrate, and
the metallic luster decoration coated packaging is formed in a
manner of film coating on an outer surface of a film side of the
laminated composite substrate, that is, on a surface of a side of
the resin opposite to the side facing to said other substrate.
Further, the resin film which is an extended polyethylene
terephthalate (PET) resin film, an extended polypropylene (PP)
resin film, an acrylic acid resin film, a cellulosic resin film, a
vinyl chloride resin film, or other transparent film can also be
laminated with paper substrates to form a composite substrate, and
the metallic luster decoration coated packaging is formed in a
manner of film coating on an inner surface of a film side of the
laminated composite substrate, that is, on a surface of a side of
the resin facing to the paper substrate.
Further, in the first and second embodiments, the surface
resistivity (surface resistance) of the coating is preferably
greater than or equal to 100 .OMEGA./sq in order to ensure the
transmittance of the radio wave.
Further, FIGS. 1 and 4 show the situation where the metallic luster
decoration coated packaging 31 is formed on the entire surface of
the substrate 11, but it is not limited to this. The metallic
luster decoration coated packaging 31 can also be formed on a
portion of the surface of the substrate 11. Also, the metallic
luster decoration coated packaging 31 can also be formed on the
back of the substrate 11, or on both front side and back side of
the substrate 11.
REFERENCE NUMERALS
1 Metal powder; 2 Ink; 3 Metal powder connection; 10, 100 Metal
decorative product; 11, 101 Substrate; 20, 200 Part; 21, 21', 201
Electromagnetic wave device; 31, 301 Metallic luster decoration
coated packaging;
* * * * *